window.addEvent('domready', function() {
    updatePricingTableCaption();
    onProductOptionsUpdate();
});

function onProductOptionsUpdate()
{
    if (! $('productOptions').getElement('select')) return;
    $('productOptions').getElement('select').addEvent('change', function()
    {     
        updatePricingTableCaption()
    })
}

function updatePricingTableCaption()
{
    if (! $('productOptions').getElement('select')) return;
    var productOptions = $('productOptions').getElement('select');
    var caption = productOptions.options[productOptions.selectedIndex].textContent;
    $$('#productInfo div.pricingBox h2')[0].textContent = caption;
}